From bestselling author Ben Macintyre, the true untold story of history's most famous traitor

Kim Philby has been called "one of the most remarkable double-agents to have been exposed in our time". Harry St. John Bridger Philby, Kim Philby's father and m

In the bestselling tradition of Spy Catcher, The Master Spy recounts the entire Kim Philby story as revealed to the only Western journalist Philby trusted.

This biography re-examines the crucial early years of Philby's work as a Soviet agent and British intelligence officer using documents from the United Kingdom N